Add examples catalog with subcommand dispatch

- Extract game engine from package main to engine/ library package
- Create examples/ package with registry, Entry type, and BuilderDeps
- Register default world as an example (moved from main())
- Add combat example: two teams of units facing each other
- Rewrite main.go as thin dispatch: go run . example [name]
- Update README with examples catalog one-liner

1 files changed, 0 insertions, 36 deletions

diff --git a/input.go b/input.go
deleted file mode 100644
index 5b9be32..0000000
--- a/input.go
+++ /dev/null
@@ -1,36 +0,0 @@
-package main
-
-import (
-	"age_of_empires/physics"
-
-	"github.com/hajimehoshi/ebiten/v2"
-	"github.com/hajimehoshi/ebiten/v2/inpututil"
-)
-
-type Input struct {
-	Cursor       physics.Point
-	ScreenCursor physics.Point
-
-	EscapePressed bool
-	PatrolPressed bool
-
-	LeftMouseDown bool
-	LeftMouseUp   bool
-	RightMouseUp  bool
-
-	SpawnPressed bool
-}
-
-func CollectInput(camera *Camera) Input {
-	sx, sy := ebiten.CursorPosition()
-	return Input{
-		Cursor:        camera.ScreenToWorld(sx, sy),
-		ScreenCursor:  physics.Point{X: sx, Y: sy},
-		EscapePressed: inpututil.IsKeyJustReleased(ebiten.KeyEscape),
-		PatrolPressed: inpututil.IsKeyJustReleased(KeyPatrolRequest),
-		LeftMouseDown: inpututil.IsMouseButtonJustPressed(ebiten.MouseButtonLeft),
-		LeftMouseUp:   inpututil.IsMouseButtonJustReleased(ebiten.MouseButtonLeft),
-		RightMouseUp:  inpututil.IsMouseButtonJustReleased(ebiten.MouseButtonRight),
-		SpawnPressed:  inpututil.IsKeyJustReleased(KeySpawnRequest),
-	}
-}